聚丙烯腈无卤阻燃及其抑烟技术研究进展

doi:10.13475/j.fzxb.20180709607

Abstract

Abstract:

In order to promote the further development of halogen-free flame retardant technology of polyacrylonitrile and provide reference for the scientific research and industrial application, the main flame retardant technologies suitable for polyacrylonitrile fiber and its fabric, the types of the commonly used halogen-free flame retardants and the main smoke suppression mechanisms of different halogen-free flame retardants were introduced. The development and the latest research progress of halogen-free flame retardants and their smoke suppression technology of polyacrylonitrile at home and abroad were reviewed. As far as the shortcomings of the different halogen-free flame retardants were concerned, corresponding solutions and development requirements were put forward. The different developments of halogen-free flame retardant of polyacrylonitrile at home and abroad were analyzed and the corresponding suggestions were put forward. It presents a new prospect for the development of flame retardant technology for polyacrylonitrile in the future. In addition, it points out that high efficiency, smoke suppression and environmental-friendly flame retardant technology will become an important development direction of flame retardant polyacrylonitrile in the future.

Key words: polyacrylonitrile, halogen-free flame retardant, flame retandant finishing, flame retardant agent, smoke suppression

CLC Number:

TS102.5

REN Yuanlin, JIANG Li'na, HUO Tongguo, TIAN Tian. Research progress of halogen-free flame retardancy and smoke suppression of polyacrylonitrile[J].Journal of Textile Research, 2019, 40(07): 182-188.

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References 45

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阻燃方法	主要工艺	优点	缺点
共混	将阻燃剂添加到纺丝液中	工艺简单易行,成本低,产品耐水洗性较好	对阻燃剂的粒径与纺丝液的相容性要求都很高。阻燃剂选择困难
共聚	将含阻燃元素的不饱和化合物与丙烯腈共聚,进而纺丝得到阻燃聚丙烯腈纤维	阻燃耐久性较好、对纤维和织物的力学性能影响不大,可纺性高	共聚单体的选择困难、生产成本较高、工艺较复杂
热氧化	将聚丙烯腈原丝置于200~300 ℃的空气氧化炉里,在一定张力下氧化一定时间	阻燃纤维强度保持率高、LOI值可高达55%~62%,阻燃性能优良	对聚丙烯腈原丝要求很高
接枝共聚	通过热、氧、光等的作用在PAN纤维或织物表面接枝上阻燃元素或基团	成本低,工艺绿色环保,对织物力学性能影响小	聚合物自由基利用率较低
后整理	浸渍涂层、溶胶-凝胶、层层自组装、生物大分子沉积	生产工艺简单,易于操作,成本较低	耐水洗性差, 影响织物手感
复合纺丝法	以阻燃高聚物为皮层、聚丙烯腈为芯层进行复合纺丝	纤维具有良好的力学性能、均匀性和稳定性	工艺较复杂,对设备技术要求高

Research progress of halogen-free flame retardancy and smoke suppression of polyacrylonitrile

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